Open device, very simple: just remove the mini torx-screws en use a flat object (I used a spatula) to gently loosen the back. It may take some force.
Locate Eeprom. It is under the metal shield. Mine was a Gigadevice 25LQ64CVIG
I purchased a cheap 4 USD USB programmer on AliExpress: CH341A Mini Programmer (Black Edition). Pay some attention to the jumper setting and correct drivers. I did a Youtube-search on the CH341A and this will provide you with all the necessary info en howTo’s. Programming Software was version 1.18.0.0. and did it on a Windows10 64bit OS
I was unsuccessful using a standard EPROM Clip: tries two different models and both failed to stay attached to the chip. The best solution was using Micro TSOP clips. They are a bit more expensive but they worked 🙂 (example: HERE)
I used the following BIOS: TbooK-16-Power-M5F8-Android6.0Win10-V3.14_20170209_BIOS_SKU
NOTE: I was UNABLE to flash the EPROM UNTIL I desoldered the Batteries + (red wire) and – (black wire). This is very easy to do, no skills required just use a hot soldering iron.
NOTE2: Although I was able to flash and verify the EPROM succesfully, the tablet refused to boot. I had to charge the device. Luckelly, I soon gave a low battery image on screen. Tablet was able to boot when charged above 30%.
Hi! Thx for the reply. Unfortunately the Tbook simply won’t turn on at all. It is therefore impossible to check settings or to revert back the initial setting of single channel RAM…
